Published January 28, 2015

With an eel-like body and 25 rows of razor-sharp teeth, this fearsome looking shark has been roaming the ocean for about 80 million years. While rarely seen, one of these ancient animals was just recently caught in a trawler’s net off the coast of Australia!

This bizarre looking fish spends most of its time on the ocean floor. It rarely swims, instead preferring to “walk” along the seafloor with the help of its pelvic and pectoral fins. The frogfish may be slow-moving, but it can capture its prey in a matter of milliseconds. You can see a frogfish right here at the National Aquarium!

The blobfish might not be the most aesthetically pleasing fish, but its minimal muscles and skeletal structure allow it to survive the intense pressure found thousands of feet below the ocean’s surface where it lives.

Roly-poly, potato bug, pill bug? Whatever name you have for that small garden pest, the giant isopod is its deep see counterpart. These carnivorous bottom dwellers live on the muddy seafloor and are typically between 7 and 14 inches long!

It’s clear where the yeti crab gets its name. This recently discovered creature's limbs are covered in soft hairs. This species is a distant relative of the hermit crab and typically found at the bottom of the ocean around hydrothermal vents.